Tilapia mossambica quick-freezing and sequencing integrated machine
By employing upper and lower drying components and an arc-shaped plate design in the tilapia quick-freezing and sorting integrated machine, the problem of moisture retention at the bottom of the tilapia is solved, achieving rapid and uniform surface drying and efficient quick-freezing, reducing energy consumption and the risk of equipment damage.
Patent Information
- Application Number
- CN202520322787.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In existing tilapia quick-freezing and sorting machines, during the quick-freezing process, the moisture in the part of the tilapia at the bottom that is in contact with the conveyor belt cannot be completely evaporated, resulting in increased adhesion and the fish sticking to the conveyor belt. In addition, the heat mainly acts on the top, causing ice to form at the bottom.
A tilapia quick-freezing and sorting integrated machine was designed, which adopts drying components on the upper and lower sides, including a shell, fan, heating tube and shielding net. High-speed airflow dries the upper and lower surfaces of the tilapia on both sides. Combined with the arc plate to guide the water flow, it avoids water retention and isolates water from contact with electronic components.
It achieves rapid and uniform removal of surface moisture from tilapia, reduces production costs, extends equipment life, avoids adhesion and secondary contamination, and improves quick-freezing efficiency.
Smart Images

Figure CN223896357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tilapia quick-freezing technology, specifically a tilapia quick-freezing and sorting integrated machine. Background Technology
[0002] Tilapia, native to Africa, are tropical fish. The genus *Tilapia* includes over 100 subspecies. Tilapia are characterized by rapid growth, high yield, omnivorous diet, low disease susceptibility, and high reproductive capacity. When quick-freezing tilapia is required, a servo motor drives rollers to rotate, which in turn rotates a belt. The tilapia are then arranged sequentially on the rollers and transported into the quick-freezing chamber for rapid freezing.
[0003] According to a public announcement of a tilapia quick-freezing and sorting integrated machine (Announcement No.: CN 218722471 U), the top of the support plate described in the above application is fixedly connected to a quick-freezing box, and rollers pass through the inside of the quick-freezing box. By turning on the servo motor to drive the rollers to rotate, the rollers drive the belt to rotate. When tilapia need to be quick-frozen, the tilapia are placed on the surface of the rollers in sequence and transported forward for quick-freezing. By opening a venting net at the end of the belt, the cold air inside the quick-freezing box circulates to the bottom of the tilapia through the venting net, so that the tilapia are quickly frozen inside the quick-freezing box.
[0004] However, in actual use, the aforementioned quick-freezing and sorting machine mainly acts on the top of the tilapia, drying only the moisture on the top. The moisture in the part of the bottom that is in contact with the conveyor belt cannot be completely evaporated, resulting in the formation of an ice layer on the bottom of the tilapia during the quick-freezing process. This increases the adhesion between the tilapia and the conveyor belt, causing the fish to stick to the belt. In view of this, we propose a quick-freezing and sorting machine for tilapia. Summary of the Invention
[0005] The purpose of this invention is to provide an integrated quick-freezing and sorting machine for tilapia to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a tilapia quick-freezing and sorting integrated machine, comprising a conveyor belt, a quick-freezing box fixedly connected to the side wall of the conveyor belt, and a drying component provided on the top of the conveyor belt, the drying component comprising:
[0007] The housing is fixedly connected to the outer wall of the conveyor belt. A cavity one is formed on the inner top surface of the housing. A flared opening is formed on the inner top surface of the housing. A cavity two is formed at the end of the flared opening away from the inner top surface of the housing.
[0008] A fan, wherein a mounting bracket is fixedly connected to the inner wall of the cavity, a motor is fixedly connected to the top end face of the mounting bracket, the fan is fixedly connected to the output shaft of the motor, a heating tube is fixedly connected to the inner wall of the cavity, and a shielding net is fixedly connected to the inner wall of the cavity.
[0009] A straight through groove is formed on the inner bottom surface of the housing. An arc-shaped groove is formed on the side wall of the straight through groove. An oblique through groove is formed on the inner bottom surface of the housing. An arc-shaped groove is formed on the side wall of the oblique through groove.
[0010] Preferably, a guide block 1 is fixedly connected to the inner wall of the straight channel, and a guide block 2 is fixedly connected to the inner wall of the inclined channel. The guide block 1 and the guide block 2 guide the hot air upward.
[0011] Preferably, there are two sets of cavity one, cavity two, and flared opening. The two sets of cavity one, cavity two, and flared opening are respectively located on the inner top surface and inner bottom surface of the shell, so that the hot air dries the upper and lower surfaces of the tilapia respectively.
[0012] Preferably, the number of fans, heating tubes and shielding nets is set to four sets, and the four sets of fans, heating tubes and shielding nets are respectively set in cavity one and cavity two.
[0013] Preferably, the flared end has a large diameter end and a small diameter end. The small diameter end is located at one end near the inside of the housing, and the large diameter end is located at one end near the second cavity. This allows hot air to pass through the flared end and flow from the large diameter end to the small diameter end. In order to ensure that the fluid flow rate remains constant, the flow velocity must be increased. When the hot air passes through the flared end, its velocity will increase as the cross-sectional area decreases.
[0014] Preferably, an arc-shaped plate is fixedly connected to the inner bottom surface of the shell, the middle of the arc-shaped plate is higher, and the perimeter of the arc-shaped plate is lower.
[0015] Compared with the prior art, this utility model provides an integrated machine for quick-freezing and sorting tilapia, which has the following beneficial effects:
[0016] 1. This tilapia quick-freezing and sorting integrated machine, through its drying components, uses high-speed airflow to quickly remove most of the surface moisture, improving initial dehumidification efficiency and avoiding secondary wetting caused by water vapor condensation. After the surface moisture is blown away, the amount of residual water on the fish surface is greatly reduced, allowing for slower drying with less heat energy. Compared to high-temperature drying throughout the process, this method saves energy and reduces production costs. The upper and lower chambers, chamber one and chamber two, dry the tilapia separately, with hot air acting on both the upper and lower surfaces simultaneously. Compared to single-sided drying, double-sided drying removes surface moisture from the tilapia more quickly and evenly, thus shortening drying time and improving work efficiency. Straight and oblique channels guide and drain moisture, isolating water from contact with electronic components and preventing moisture from contacting the heating element and motor. This reduces the risk of short circuits in the motor due to moisture and damage to the heating element due to moisture corrosion.
[0017] 2. This tilapia quick-freezing and sorting integrated machine uses an arc-shaped plate. When water flows onto the inner bottom surface of the shell, the arc-shaped plate uses gravity and the inclined surface to guide the water flow to the outside of the shell quickly, preventing water from stagnating on the inner bottom surface of the shell. This prevents water accumulation, reduces the humidity inside the equipment, maintains a dry environment, and avoids secondary contamination of food or affecting the drying effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0019] Figure 2 This is a schematic diagram of the drying component structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;
[0021] Figure 4 This is an exploded view of the fan of this utility model.
[0022] In the diagram: 1. Conveyor belt; 2. Quick-freezing box; 3. Drying assembly; 301. Shell; 302. Cavity 1; 303. Cavity 2; 304. Flared mouth; 305. Mounting bracket; 306. Motor; 307. Fan; 308. Heating tube; 309. Shielding net; 310. Arc groove 1; 311. Arc groove 2; 312. Straight groove; 313. Angled groove; 314. Guide block 1; 315. Guide block 2; 4. Arc plate. Detailed Implementation
[0023] like Figures 1-4As shown, this utility model provides a technical solution: a tilapia quick-freezing and sorting integrated machine, including a conveyor belt 1, a quick-freezing box 2 fixedly connected to the side wall of the conveyor belt 1, and a drying component 3 provided on the top of the conveyor belt 1. The drying component 3 includes a shell 301, a first cavity 302, a second cavity 303, a flared mouth 304, a mounting bracket 305, a motor 306, a fan 307, a heating tube 308, a shielding net 309, an arc-shaped groove 310, an arc-shaped groove 311, a straight groove 312, an oblique groove 313, a guide block 314, and a guide block 315.
[0024] In one embodiment of this utility model, the housing 301 is fixedly connected to the outer wall of the conveyor belt 1. A cavity 302 is formed on the inner top surface of the housing 301. A flared opening 304 is formed on the inner top surface of the housing 301. A cavity 303 is formed at the end of the flared opening 304 away from the inner top surface of the housing 301. A mounting bracket 305 is fixedly connected to the inner wall of the cavity 302. A motor 306 is fixedly connected to the top end face of the mounting bracket 305. A fan 307 is fixedly connected to the output shaft of the motor 306. A heating tube 308 is fixedly connected to the inner wall of the cavity 302. A shielding net 309 is fixedly connected to the inner wall of the cavity 302.
[0025] A straight channel 312 is formed on the inner bottom surface of the housing 301. An arc-shaped groove 310 is formed on the side wall of the straight channel 312. An oblique channel 313 is formed on the inner bottom surface of the housing 301. An arc-shaped groove 311 is formed on the side wall of the oblique channel 313. A guide block 314 is fixedly connected to the inner wall of the straight channel 312. A guide block 315 is fixedly connected to the inner wall of the oblique channel 313. The guide block 314 and the guide block 315 guide the hot air upward.
[0026] There are two sets of cavity one 302, cavity two 303, and flared mouth 304. The two sets of cavity one 302, cavity two 303, and flared mouth 304 are respectively located on the inner top surface and inner bottom surface of shell 301, so that hot air dries the upper and lower surfaces of tilapia. There are four sets of fan 307, heating tube 308, and shielding net 309. The four sets of fan 307, heating tube 308, and shielding net 309 are respectively located in cavity one 302 and cavity two 303. Flared mouth 304 has a large diameter end and a small diameter end. The small diameter end is located at the end closer to the inside of shell 301, and the large diameter end is located at the end closer to cavity two 303. Hot air flows from the large diameter end to the small diameter end through flared mouth 304. In order to ensure that the fluid flow rate remains constant, the flow velocity must be increased. When hot air passes through flared mouth 304, its velocity will increase as the cross-sectional area decreases.
[0027] Inside cavity two 303, motor 306 drives fan 307 to rotate, blowing hot air towards the flared opening 304. The hot air flows from the larger diameter end to the smaller diameter end, increasing its velocity and thus blowing away the moisture on the surface of the tilapia. Then, driven by conveyor belt 1, the tilapia reaches the bottom of cavity one 302. Inside cavity one 302, fan 307 blows hot air onto the tilapia, drying any remaining moisture on its surface. This makes the drying process more uniform. Compared to direct drying, high-speed airflow can quickly remove most of the surface moisture, improving initial dehumidification efficiency. To avoid secondary wetting caused by water vapor condensation, the amount of residual water on the fish surface is greatly reduced after the surface moisture is blown away. At this time, slow drying is carried out, which requires less heat energy. Compared with high-temperature drying throughout the process, this method saves energy and reduces production costs. The upper and lower chambers 302 and 303 on the top and bottom sides dry the tilapia respectively. The hot air can act on the upper and lower surfaces of the tilapia at the same time. Compared with the single-sided drying design, double-sided drying can remove the moisture on the surface of the tilapia more quickly and evenly, thereby shortening the drying time and improving work efficiency.
[0028] When water flows to the inner bottom surface of the housing 301, the water is discharged from the housing 301 through the straight channel 312 and the oblique channel 313, and will not enter the first cavity 302 and the second cavity 303 where the heating tube 308 and the motor 306 are located. The straight channel 312 and the oblique channel 313 guide the water out, isolate the water from contact with the electronic components, and prevent the water from contacting the heating tube 308 and the motor 306. This can reduce the risk of the motor 306 short-circuiting due to moisture and the heating tube 308 being damaged by moisture corrosion, thereby extending the service life of the equipment.
[0029] In addition, an arc-shaped plate 4 is fixedly connected to the inner bottom surface of the housing 301. The middle of the arc-shaped plate 4 is higher and the surrounding area is lower. When water flows onto the inner bottom surface of the housing 301, the arc-shaped plate 4 uses gravity and the inclined surface to guide the water flow to the outside of the housing 301 quickly, avoiding water retention on the inner bottom surface of the housing 301. This can prevent water accumulation, reduce the humidity inside the equipment, maintain a dry environment, and avoid secondary contamination of food or affecting the drying effect.
[0030] In this invention, during use, the motor 306 inside cavity two 303 drives the fan 307 to rotate, blowing hot air towards the flared opening 304. The hot air flows from the larger diameter end to the smaller diameter end, increasing the airflow speed and thus blowing away the moisture on the surface of the tilapia. Then, driven by the conveyor belt 1, the tilapia reaches the bottom of cavity one 302. The fan 307 inside cavity one 302 blows hot air onto the tilapia, drying the remaining moisture on its surface. The high-speed airflow can quickly remove most of the surface moisture, improving the initial dehumidification efficiency while avoiding secondary wetting caused by water vapor condensation. After the surface moisture is blown away, the amount of water remaining on the fish surface is greatly reduced. At this point, slow drying requires less heat energy compared to full-process high-temperature drying. This method saves energy and reduces production costs. The heat acts on both the upper and lower surfaces of the tilapia simultaneously. Compared to a single-sided drying design, double-sided drying can remove moisture from the surface of the tilapia more quickly and evenly. When water flows towards the inner bottom surface of the shell 301, the water is discharged from the shell 301 through the straight channel 312 and the oblique channel 313, without entering the first cavity 302 and the second cavity 303 where the heating tube 308 and the motor 306 are located. The straight channel 312 and the oblique channel 313 guide the water out, isolating the water from contact with the electronic components and preventing water from contacting the heating tube 308 and the motor 306. This reduces the risk of the motor 306 short-circuiting due to moisture and the heating tube 308 being damaged by moisture corrosion.
[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A tilapia quick-freezing and sorting integrated machine, comprising a conveyor belt (1), wherein a quick-freezing box (2) is fixedly connected to the side wall of the conveyor belt (1), characterized in that: A drying assembly (3) is provided on the top of the conveyor belt (1), and the drying assembly (3) includes: The housing (301) is fixedly connected to the outer wall of the conveyor belt (1). The inner top surface of the housing (301) is provided with a cavity one (302). The inner top surface of the housing (301) is provided with a flared mouth (304). The end of the flared mouth (304) away from the inner top surface of the housing (301) is provided with a cavity two (303). A fan (307) is fixedly connected to the inner wall of the cavity (302), a mounting bracket (305) is fixedly connected to the top end face of the mounting bracket (305), the fan (307) is fixedly connected to the output shaft of the motor (306), a heating tube (308) is fixedly connected to the inner wall of the cavity (302), and a shielding net (309) is fixedly connected to the inner wall of the cavity (302). A straight through groove (312) is formed on the inner bottom surface of the housing (301). An arc-shaped groove (310) is formed on the side wall of the straight through groove (312). An oblique through groove (313) is formed on the inner bottom surface of the housing (301). An arc-shaped groove (311) is formed on the side wall of the oblique through groove (313).
2. The tilapia quick-freezing and sorting integrated machine according to claim 1, characterized in that: The inner wall of the straight channel (312) is fixedly connected to a guide block one (314), and the inner wall of the oblique channel (313) is fixedly connected to a guide block two (315).
3. The tilapia quick-freezing and sorting integrated machine according to claim 1, characterized in that: The number of cavity one (302), cavity two (303) and horn mouth (304) is provided in two sets, and the two sets of cavity one (302), cavity two (303) and horn mouth (304) are respectively located on the inner top surface and inner bottom surface of the shell (301).
4. The tilapia quick-freezing and sorting integrated machine according to claim 1, characterized in that: The number of the fan (307), heating tube (308) and shielding net (309) is set in four sets, and the four sets of the fan (307), heating tube (308) and shielding net (309) are respectively set in cavity one (302) and cavity two (303).
5. The tilapia quick-freezing and sorting integrated machine according to claim 1, characterized in that: The flared end (304) is provided with a large diameter end and a small diameter end. The small diameter end is located at one end near the inside of the housing (301), and the large diameter end is located at one end near the cavity (303).
6. The tilapia quick-freezing and sorting integrated machine according to claim 1, characterized in that: An arc-shaped plate (4) is fixedly connected to the inner bottom surface of the housing (301). The middle of the arc-shaped plate (4) is higher, and the periphery of the arc-shaped plate (4) is lower.
Citation Information
Patent Citations
Tilapia quick-freezing and sorting all-in-one machine
CN218722471U